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Author Topic: HOW TO GET PROGRAM FROM LOCK ATTINY2313  (Read 4769 times)
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tango
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« on: September 06, 2009, 10:00:33 10:00 »

Can someone post som example or link HOW TO ?
I need to read locked ATTINY2313.
Best regards to all.
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gem1144aaa
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« Reply #1 on: September 06, 2009, 03:31:57 15:31 »

Hi tango

forget it .

find this link first then decide

http://www.sonsivri.com/forum/index.php?topic=2815.0
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jestanoff
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« Reply #2 on: September 22, 2009, 07:21:21 19:21 »

In older Atmel microcontrollers had a chance to read the contents by reducing the voltage of the microcontroller, but the release of avr series I think this bug is resolved.
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chinninitin
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« Reply #3 on: November 03, 2009, 06:54:46 18:54 »

Friends,

Instead of posting for help here and trying and wasting time,,  one can write code in 50% of this time :-)

Try atleast ;-)

Chinni
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DarkClover
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« Reply #4 on: November 03, 2009, 08:55:13 20:55 »

There is a way but it's very very very complicated.

First you have to buy some chemicals (strong acids and methyl alcohol). Then you need precision mechanics tools, a Oscilloscope,a good Logicanalyser and a very good microscope.
After you got everything view this YouTube video: http://www.youtube.com/watch?v=tnY7UVyaFiQ
Nearly the same way you'll get the data out of the ATtiny2313.

If I get some other method's I'll post it here.
« Last Edit: November 04, 2009, 06:27:24 18:27 by DarkClover » Logged

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DarkClover
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« Reply #5 on: November 04, 2009, 06:28:23 18:28 »

Another method:
Use the Logic analyser from method 1 to monitor and log the pins from
the ATtiny2313. Maybe with that you can reverse engineer the code.
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cncbasher
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« Reply #6 on: November 04, 2009, 07:24:25 19:24 »

unless you have $$$$$$$$$ , or a university's budget  don't even try . there again if you did you would not need to reverse engineer the code
many chips have protection and code encryption built in , and poking the chip will infact deliberately destroy it , microchip did in the early days have a poor fab plant which allowed a few tricks to be used to open the fuse bank and allow the code to be read , but these day's they are an order of a few magnitude more secure , companys are demanding more security to their IP rights .

many companys now rather than code the chip themselves , have the fab plant build and program the chip before delivery , and is part of the master chip
and in this case cannot be read out .

 
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